Hot reload fixes (#819)

* Avoid log duplication from paket plugin source.

* Reset time values on reload.

Author: jhett12321

NWN.Anvil/src/main/API/Time/Time.cs

@@ -33,6 +33,8 @@ internal sealed class Service : IUpdateable
 
       public Service()
       {
+        TimeSinceStartup = TimeSpan.Zero;
+        DeltaTime = TimeSpan.Zero;
         Log.Debug(Stopwatch.IsHighResolution ? "Using high resolution loop timer for loop operations..." : "Using system time for loop operations...");
       }
 

NWN.Anvil/src/main/Plugins/IPluginSource.cs

@@ -1,8 +1,9 @@
+using System;
 using System.Collections.Generic;
 
 namespace Anvil.Plugins
 {
-  internal interface IPluginSource
+  internal interface IPluginSource : IDisposable
   {
     IEnumerable<Plugin> Bootstrap();
   }

NWN.Anvil/src/main/Plugins/LocalPluginSource.cs

@@ -53,5 +53,7 @@ private IEnumerable<Plugin> CreatePluginsFromPaths(IEnumerable<string> pluginPat
 
       return plugins;
     }
+
+    public void Dispose() {}
   }
 }

NWN.Anvil/src/main/Plugins/Paket/PaketPluginSource.cs

@@ -155,5 +155,10 @@ private void OnLogEvent(object sender, Logging.Trace args)
           break;
       }
     }
+
+    public void Dispose()
+    {
+      Logging.@event.Publish.RemoveHandler(OnLogEvent);
+    }
   }
 }

NWN.Anvil/src/main/Plugins/PluginManager.cs

@@ -252,6 +252,8 @@ private void BootstrapPlugins()
         throw new Exception("No plugins are available to load, and ANVIL_PREVENT_START_NO_PLUGIN is enabled.\n" +
           $"Check your plugins are available at {HomeStorage.Plugins}, or add valid plugins paths using the ANVIL_ADD_PLUGIN_PATHS variable.");
       }
+
+      pluginSources.DisposeAll();
     }
 
     private bool IsUnloadComplete(Dictionary<WeakReference, string> pendingUnloads, int attempt)